Stropper roll



Aug. 14, 1 3 F. E. WOLCOTT STROPPER ROLL Filed April 25, 1931 ATTORNEIY.

Patented Aug. 14, 1934 STROPPER ROLL Frank E. Wolcett, West Hartford, Conn., as-

signor to Hartford Products Corporation, a corporaiion of Delaware Application April 23, 1931, Serial N0. 532,251

24 Claims.

My invention relates to stropper rolls.

It has among its objects t provide an improved stropper roll and improved means for connecting thereto the ende of the stropper strip wound spirally thereon. Further objects of my invention are to provide such a, roll of improved structure and having improved means for receiving the ends of the spiral strip, improved holding means cooperating with said mea=ns 011 the roll in holding the ends of the strip secnrely in position, improved means for strengthening the roll, improved means for preventing relative rotation between the roll and its driving pin, and improved means for positioning the driving gear, all while produeing a rugged, simplified ancl inexpensive construction adapted to be readily and inexpensively assembled, These and other objects and advantages of my improved construction will, however, hereinafter more fu1ly appear.

In the accompanying drawing I have shown for purposes of illustration two embooliments Which my invention may assume in practice.

In the drawing,

Figure 1 is a side elevation of a complete roll constrncted in accordance with my improvement;

Fig. 2 is a, vertical longitudinal sectional view cf the. same;

Fig. 2a is a detai1 sectional view on lines 22 of Figure* 2.

Fig. 3 is an elevational view of the left band end of the roll shown in Fig. 1;

Fig. 4 is an end view of the opposite end of the roll;

Fig. 5 is a side elevation of the roll body per se;

Fig. 6 is an end view o1 the roll shown in Fig. 5;

Fig. 7 is a sicle elevation showing one end 0f a modified construction of roll, and

Fig. 8 is an end view of this modified roll.

In ehe eonstruction shown in Figures 1 to 6, I have shown a stropper roll comprising a roll body 1 carrying a spirally disposed stropper leatner 2 and having usual journals 3 at its opposite ends anal a usual driving gear 4 at one end; this roll herein beim; 01 an improved construetion and having improved means receiving the ends cf the stropper strip 2 and carrying improved means co-operating with seid receiving means in holding tne pa;rts secure1y in position, all as hereinafer described.

Referring more particularly t-o the roll stracture, it will be noted that herein, the strip 2 is wound on the outer surface ofthe roll although obviously ic may be wound in a usual spiral groove 5 011 the roll, if desired. As shown, the roll at eacn end is also provided -Wit-h a longitudinal slot 5 extencling across ehe axis of C-h roll whieh prefera'oly, as herein, also lies an inclined or sloping inner' Wall 6, while both of these Walls 6- also preferably slope towarcl the same sideof the roll and in such manner as to produce slots having opposite narrow and wide ends with the narrow ends on one side o1" the roll and the wider ends diametric-ally opposit-e the same. Moreover, it Will be notecl that each slotted. end of the roll is herein, as preferably, reduced as shown at 7, each recluced portion herein having ab its inner end the usual annulai groove incic'lent to its manufacture. Ic Will also be noted. that each end of the roll is provided with an axial bore adapted to receive the pins 8 anal 9 carrying the journals 3. As shown, one of these bores 10 is short, while the other, 11, which receives the driving pin 9 carrying the gear 4, is longer than the bore 10 and of 1;Wo oliameters (Fig. 5)- and provided with' a; reduced extension 12 adapted to receive longitudinally and. thereafter hold against rotation, a flattened end portion 13 011 the pin 9. Obviously, if desired, similar extensions may be provided in the end of the bore 10 and 011 the encl of the pin 8, but these are ordina;rily omitted since the pin 8' isn01; a part of the driving train.

Referring more particularly to the eonnections for the leather strip 2, it Will be noted that in this construction the leather 2 is he1d in place wholly independent of the pins 8 a;nd 9. More particularly, it Will be noted. isha.t the bent ends of the leather strip, indicated at 14, are ex tended through the wide encls of the slots 5 in such manner that they do not extend into the axialbores 10' and. 11-. Moreover, it Will be noted that a ferrule 15 is drivendown over each reduced end 7 of the roll anal into the ouuer sides of ehe inturned ends 14 cf the strip 2 in such manner as not only 130 press the opposite sides of the ends 14 tigh1; against the Walls 6, bui; also, through the s1ight penetration of the inner edge of the ferrule into the leather, as shown in Figure 2, securely hold the 1a-tter in position when the outer end of the ferrule is overturned as shown at 16 in Figure 3 around the periphery of the end face 17 0f the reduoed portion 7. As shown, this portion 16 is preferably in the form of a, narrow peripheral band and also engaged at one end of the roll by the periphery of the gear. 4 which is clampedby the pin 9 between the end of the roll on one side anal the journal on the other. It will also be noted. that at the same time that the ferrule 15 thus forces the extension 14 inward in the Wide end of the slot 5, the ferrule acts to cover the narrow end of the s1ot 5 in such manner as to produce a finished. construction, while, the body of the ferrule being disposecl in the reduced portion 7, the ferrule also acts 130 produce a finished roll of uniform diameter from end so end and of attraetive appearance.

In Figures 7 and 8 I ha.ve shown a modified construetion, which, while not preferred, may be used if desired. In this construction it will be noted that, instead of the slot 5, a transverse aperture 18, herein in the form of a round hole, is provided at the j1mction of the reduced portion 7 with the body l, and part in each. In this construction, the ends 14 of the leather strip 2 are extended into these apertures in the same manner previousiy described, -while the ferrule 15 engages and positions the ends 14 in the same manner as previously described. Obviously this construction will also function sinn- 1ar1y to that previousiy described. Also, hy providing an ape1ture 18 only extending from the periphery int0 the bo1e, a construction may be provided which presents 110 unused aperture in the periphery 0f the finished roll, while, by using a longer aperture which extends completely through the roll, a reversible construction will be provided which will 1eceive the ends 14 in either end thereof and require the presence 0f on1y a relatively small unused aperture in the surface of the roll.

As a result of my improved construction, it is made possible to provide a roll structure which may be assernb1ed as a unit With its 1eather strip fixed in position prior to the insertion of the pins therein, and in which, the pins being independent of the holding means for the leather, the insertion of the pins can in no way disturb 01 shift the leather strip. Moreover, it will be noted that while I am not limited to the use of a particular material for the body 0f the roll, the construction is such as to lend itself readi1y t0 use with a wooden roll body, the presence of the ferrules acting 130 strengthen the roll and acting to minimize any tendency to sp1it. It will as0 be noted tbat the ends 0f the st1ip 2 are so securely positioned by the ferrules and the co-operating openings in the ends 0f the roll, as to enable the st1ip 2 t0 be very tight on the roll periphery and accordingly perrnit a roll 0f uniform external diameter to be used without grooving or holding means, with a minimum 0f slipping possibie on the pa1t 0f the strip 2. Obvious1y, also in my improved construction it Will be noted that due to the interlock of the aperture 12 with the end 13 of the pin 9, which carries the gear 4, this driving pin is securely positioned against rotation relative to the roll, at the same time that the gear is securely held between the bearing 3 0n the pin and the adjacent peripheral portion 16 on the ferrule 15 and reliance upon the engagement of the body of the pin with the bore is so minimized as to permit a smooth 01 vnfluted pin to be used if desired. Attention is also directed to the fact that the roll body per se is of such construction as to be very readily and cheaply made and also such as to permit the use of wo0d if desired. Attention is further directed to the fact that the structure 0f the component parts is such that the complete roll may be manufactured and assembled at smali expense, While providing a very eflective construction adapted to withstand long use in service. These and other advantages 0f my impr0ved construction Will, however, be c1early apparent t0 those skilled in the art.

Whi1e I have this application specifically described two embodiments which my invention may assume in practice, it Will be understood that the same are shown for purposes of illustration only, and that the invention is not limited thereto but may be mcdified and embodied in various other forms without departing f1om its spirit 01' the scope of the appended claims.

What I claim as new and desire to secure by Letters Patent is:

l. A stropper roll having an aperture in its body extending transversely thereof from the periphery of its end, a sharpening strip wound spirally on the periphery of said body and having an end extending into said aperture, and a ferrule having-'a driving fit on the periphery 01 said roll end pressing the end of said strip against the inner wall 0f said aperture.

2. A stropper roll having an aperture in its body extending transverseiy thereof from the periphery of its end, a sharpening strip wound spirally 0n the periphery 0f said body and having an end extending into said aperture, and a ferrule said roll b0dy having a reduced end and said ferrule having a driving fit on said reduced. end and pressing said end of said strip against the inner Wall of said aperture.

3. A stropper roll having an aperture in its body extending transversely thereof from the periphery of its end and an axial bore, a pin in said bore, a stropper strip wound spirally on the periphery of said roll and having a bent end in said aperture, and means independent of said pin for positioning said bent end in said aperture.

4. A stropper roll having an aperture in its body extending transversely thereof from the periphery 0f its end and an axial bore, a pin in said bore, a stropper strip spirally disposed on the periphery 0f said roll and having a bent end in said aperture, and a ferrule independent of said pin for positioning said bent end in said aperture.

5. A stropper roll having a transverse slot extending across its end and also an axial bore, a pin in said bare, a stropper strip spirally wound an the periphery 0f said roll body and having a bent end in said slot and rneans independent of said pin and overlying said slot on the roll periphery for positioning said bent end in said slot.

6. A stropper roll having a transverse slot extending across its end and also an axial bore, a pin in said bore, a stropper strip wound spirally on the periphery of said roll and having a bent end in said slot, and a ferrule independent of said pin and overiying said slot on the roll periphery fo1 positioning said bent end in said slot.

7. A stropper roll having a transversely disposed aperture in its end and an axial bore, a pin in said bore, a spirally wound stropper member having a bent end in said aperture, and means independent of said pin and d1iven on said roll fo1 pressing said bent end in said aperture longitudinally of said roll.

8. A stropper roll having a transversely disposed aperture in its end and an axial b01e, a pin in said bore, a spirally wound stropper member having a bent end in said aperture, and a ferrule independent of said pin and driven on the periphery of said roll for pressing said bent end in said aperture longitudinally of said roll.

9. A stropper roll having a transverse slot extending across its end and also an axial bare, a pin in said bore, a spirally wound stropper member having a bent end in said slot, and a ferrule independent 0f said pin for positioning said bent end in said slot, said slot having an inclined inner Wall and hav1'ng its unused end covered by said ferrule.

10. A stropper roll having an aperture in its end and an axial bore, a pin in said bore, a spirally w0und stropper mernber having a bent end in said aperture, and a ferrule independent of said pin for positioning said bent end in said aperture and having a peripheral portion engaging the end 0f said roll and an enlarged axial aperture surrounding said pin.

11. A stropper roll having an aperture in its body extending transversely thereof from the periphery cf its end and an axial bore, a pin in said bore, a stropper strip wound spirally on the periphery 01" said roll and having a bent end in said aperture, a ferrule overlying said aperture on the roll periphery and positioning said bent end in said aperture, and a gear carried on said pin and clamped thereby against said ferrule.

12. A stropper roll having an axial aperture therein and a rigid Journal pin having a driving t in said aperture hawing driven means embedded in tne side Walls of ehe latter and an inner extremity, and c0-operating interlocking means in the inner end Wall er" said aperture and on said inner extremity of said pin interlocking vvhen said pin is driven into said aperture to prevent relative rotation between said roll and pin.

13. A stropper roll having an axial aperture therein and a journal pin having a driving fit in said aperture, and co-operating interlocking means respectively integral with the inner end Wall cf said aperture and integral witn the inner end of said pin interlocking so prevent relative rotation between said roll and pin when said pin is drlven into said aperture, said interlocking means being longitudinally connecti'ble and comprising an extension 011 said pin and an extension in said bore receiving said first extension.

14. A stropper roll naving a wooden body and an axial bare, a journal pin having a driving t in said leere insertable therein without rotation relative to the latter and having driven means ernbedded in the side wall 01 said bore, and longitudinally connecoible interlocking means interlocking when said pin is driven into said aperture preventing relative rotation between said pin and roll and comprising interfitting portions at the inner end of said pin and. bare and integral With the end Wall of said bore and the extremity 0:" said pin.

15. A stropper roll having an axial bore, a Journal pin in said bare having a driving fit therein and driven means imbedcled in the side walls of said bore, longitudinally connectible interlocking means preventing relative rotation between said pin and roll located ab the inner end. of said pin and bare and. automatically connectible vvhen said pin is driven into said bore, a ferrule having a driving fit on Ehe end of said roll, and a gear clamped between the outer ends of said pin and ferrule.

16. A stropper roll having an axial bore, a pin in said bore insertable therein without rotation relative to the latter, longitudinally connectible interlocking means preventing relative rotation between said pin and roll loeated at the inner end 015 said pin and bore, a ferrule carried 011 the end of said roll, and a gear disposed between the outer ends of said pin and ferrule, said roll having a transverse aperture in its end and a spirally Wound stropping member having a bent end in said aperture and positioned therein by said ferrule.

17. A stropper roll having an axial bore, a pin in said. bore, insertable berein without rotation relative t0 the latter, longitudinally connectible interlocking means preventing relative rotation betvveen said pin and roll located ab the inner end of said pin and bore, a ferrule carried on the end cf said roll, and a gear disposed between the outer ends of said pin and ferrule, said roll having a transverse slot having an inclined inner Wall and a spirally wound stropping element having a bent end in the wider end of said s1ot and positioned by said ferrule.

18. A stropper roll having a wooden body, an axial bore therein, and a transverse aperture leading from the roll periphery toward said bore, a stropper strip wound spirally on said roll and having an end in said aperture, a journal pin driven in said bore and having portions embedded in the wall thereof, and a peripheral ferrule on the roll end inhibiting splitting of the roll body by said pin and also positioning said end in said aperture.

19. A roll f01 supporting a stropper strip, having an axial bore, a reduced portion surrounding one end of the same, and a slot extending transversely 0f said reduced portion on each side 01 said bore and also extending longitudinally into the unreduced portion of said roll at one side 0f said bare, said last mentioned portion cf the slot being adapted 130 receive the end of a stropper str1p and said reduced portion being adapted '00 receive positioning means for said strip end.

20. A roll for supporting a stropper strip, having an axial bore, a reduced portion surrounding one end of the same, and a sloi: extending transversely oi said reduced portion. on each side of said bore and also extending longitudinally into ohe unreduced portion of said roll at one side 01 said bore and having an inclined transversely disposed inner Wall reducing the depth of one end of said s1ot, said slot being adapted 130 receive ehe end of a stropper strip in its wider end and said reduced portion being adapted to receive positibning means for said strip end.

21. A roll for supporting a stropper strip. having an axial bore in its end and a slot in said end extending diametrically across the roll end and having an inclined inner Wall producing slots 0f diflerent lengths in the periphery of the end of the roll and disposed longitudinally of the latter on opposite sides of said bore, the slot of longer length being adapted 130 receive ehe end of a stropper strip.

22. A roll for supporting a stropper strip having an axial bare, a reduced portion surrounding one end of the same, and. a transverse aperture spaced from the extremity 0f said reduced portion and communicating With said aperture, said transverse aperture being adapted to receive the end cf a stropper strip and said reduced portion being adapted to receive positioning means for said strip end.

23. A roll for supporting a stropper strip, having an axial bore, a reduced portion surrounding one end of tne same, and a transverse aperture spaced from the extremity 026 said reduced portion and cornmunicating with said aperture, said aperture being disposed in part in eaeh cf the reduced and unreduced portions of the roll, said transverse aperture being adapted t0 receive the end of a stropper strip in the umedueed portion of the roll and said redueed portion being adapted 130 receive positioning means for said strip end.

24. A driving journal pin for stropper rolle having a journal portion on one end thereof, an elongated peripherally roughened intermediate driving portion of smaller diameter than said journal portion, and rotation inhibiting means at its opposite extremity comprising a plurality of flattened portions on opposite sides of said extremity.

FRANK E. WOLCOTT. 

